Ardma.ru W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Element “script” must not have attribute “async” unless attribute “src” is also specified.
A document must not include more than one “meta” element with a “http-equiv” attribute whose value is “content-type”.
Bad value “x-dns-prefetch-control” for attribute “http-equiv” on element “meta”.
The “align” attribute on the “div” element is obsolete. Use CSS instead.
Warnings:
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
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